Optimum temperature for NVIDIA GeForce GTS 250

Could someone please advise me on the optimum running temperature (Celsius) for the 1024MB NVIDIA GeForce GTS 250 (Asustek) on my Windows 7 Professional 32 bit desktop? On hot South African days (29 - 34 degrees Celsius) the NVIDIA temp varies between 45 and 50 degrees Celsius, depending on the time of day.

The Following User Says Thank You to CLiNT For This Useful Post:

And thank you Clint for your kind reply! For your and @Studio15's info, I have just had my entire rig transferred to a new tower, as the USB on the old one was giving trouble: the old one kept the hardware quite a lot cooler for some reason. But I'm glad to hear the temperatures are within acceptable ranges...